Drop the cabbage and clove-studded onion into a large pan of boiling water.
Cook for 10 minutes, then drain. Discard the onion.

In a large pan, heat the olive oil. Add the garlic, the salt pork or bacon,
and the chorizo. Cook gently for 5 to 7 minutes, or until the pork or bacon
starts to color. Add the drained cabbage and the sliced apple. Add a little
salt (remembering that the pork or bacon and the sausage are already salted).
Cover the pan and cook over low to moderate heat, stirring occasionally, for
20 to 25 minutes or until the cabbage is very tender. Stir in the vinegar and
serve.